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Publication of CS153085B2publicationCriticalpatent/CS153085B2/cs
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B25/00—Phosphorus; Compounds thereof
C01B25/16—Oxyacids of phosphorus; Salts thereof
C01B25/18—Phosphoric acid
C01B25/185—Preparation neither from elemental phosphorus or phosphoric anhydride nor by reacting phosphate-containing material with an acid, e.g. by reacting phosphate-containing material with an ion-exchange resin or an acid salt used alone
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Chemical & Material Sciences
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Organic Chemistry
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Inorganic Chemistry
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Separation Using Semi-Permeable Membranes
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Water Treatment By Electricity Or Magnetism
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